About Us

The Society of Industrial and Office Realtors® is the leading professional commercial and industrial real estate association.  With more than 3,000 members in more than 630 cities in 34 countries, SIOR represents today's most knowledeable, experienced and successful commercial real estate brokerage specialists.

SIOR has certified thousands of members with the prestigious SIOR designation, a professional symbol of the highest level of knowledge, production and ethics in the real estate industry. Real estate professionals who have earned the SIOR designation are recognized by corporate real estate executives, commercial real estate brokers, agents, lenders, and other real estate professionals as the most capable and experienced brokerage practitioners in any market. SIOR designees can hold the following specialty designations: industrial, office, sales manager, executive manager, or advisory service.

SIOR also consists of associate members who include corporate executives, developers, educators and others involved in the commercial real estate industry.

A professional affiliate of the National Association of Realtors®, SIOR is dedicated to the practice and maintenance of the highest professional and ethical standards. SIOR maintains a commitment to business and industry by providing outstanding professional services, publications and educational programs.

Tansaction data shows the success of SIOR members: On average from 2008 to 2012, SIOR members reported that he or she leased or sold an average of 1 million square feet of space for a total dollar volume of $31 million in 30 transactions. 

As a group, SIOR designees closed more than 78,000 transactions.

SIOR maintains and promotes a professional designation of the highest quality for the benefit of its members and their clients.  The SIOR designation stands unchallenged for excellence in the performance of real estate services, and is universally recognized as the prerequisite in the selection of a commercial real estate broker, agent or consultant.

For more information on SIOR, visit our national website at: www.sior.com